IBM 3270 - Page 53

w
i write. To make a permanent or transient recording of
I data in a storage device or on a data medium.
CCITT that defines the interface between data terminal
equipment and packet switching networks.
X.21 communication adapter. A communication
adapter that can combine and send information on one
line at speeds up to 64 kbps, and that conforms to
CCITT X.21 standards.
X.25. In data communication, a recommendation of the
3270 data stream. (1) The commands, control codes,
orders, attributes, and data or structured fields for 3270
devices, that are transmitted inbound to an application
program or outbound to a terminal. (2) Data being
transferred from or to an allocated primary or tertiary
device, or to the host system, as a continuous stream of
data and 3270 Information Display System control
elements in character form.
Glossary X-7